# CAMS Solar Radiation Timeseries new data availability and request limits on ADS

**URL:** <https://forum.ecmwf.int/t/cams-solar-radiation-timeseries-new-data-availability-and-request-limits-on-ads/14735>\
**Category:** CAMS - Announcements\
**Tags:** cams, cams\_solar\_radiation, ads\
**Created:** [20 February 2026 10:40 UTC](https://forum.ecmwf.int/t/cams-solar-radiation-timeseries-new-data-availability-and-request-limits-on-ads/14735 "2026-02-20T10:40:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\
**Post date:** [20 February 2026 10:40 UTC](https://forum.ecmwf.int/t/cams-solar-radiation-timeseries-new-data-availability-and-request-limits-on-ads/14735/1 "2026-02-20T10:40:21Z")

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We would like to inform you that the **CAMS solar radiation time-series** available on the Atmosphere Data Store (ADS) has been updated.

> **[CAMS solar radiation time-series](https://ads.atmosphere.copernicus.eu/datasets/cams-solar-radiation-timeseries?tab=overview)**
>
> The CAMS solar radiation services provide historical values (2004 to present) of global (GHI), direct (BHI) and diffuse (DHI) solar irradiation, as well as direct normal irradiation (BNI). The aim is to fulfil the needs of European and national...

The major updates include:

- **User request limitation extended** : CAMS Radiation Service daily limitation has been raised to 500 requests.
- **New data availability** : CAMS Radiation and McClear services are available up to yesterday (day-1).

Users can download data either interactively using the ADS web interface ([download form](https://ads.atmosphere.copernicus.eu/datasets/cams-solar-radiation-timeseries?tab=download)) or programmatically using the [API service](https://ads.atmosphere.copernicus.eu/how-to-api).

For details on data availability please check the documentation [here](https://ads.atmosphere.copernicus.eu/datasets/cams-solar-radiation-timeseries?tab=documentation).

If you have any question, please raise a query via the [ECMWF Support Portal](https://confluence.ecmwf.int/category/cd).

Regards

ECMWF Support